Engine-cylinder.



A. BlEr ENGINE CYLINDER.

APPLICATION FILED FEB. I6, 1916.

Patented J an. 1, 1918.

351; 61: can? UNITED STATES PATENT oFFIoE.

ALBERT B13, 01 WINTERTHUR, SWITZERLAND, ASSIGNOR TO PUSGH-SULZEB BROS.- DIESEL ENGINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

ENGINE-CYLINDER.

Specification of Letters Patent.

Patented Jan. 1, 1918.

Application filed February 16, 1916. Serial No. 78,579.

To all whom it may concern:

Be it known that I, ALBERT Bra, a subject of the Kingdom of Norway, residing at Winterthur, Canton of Zurich, Switzer- The invention concerns the construction of cylinders for internal combustion engines and more particularly the relation of the liners thereof to the outer jacket or casing, whereby such liners are insertible through the crank-shaft end of said casing and into abutting relation to the permanent head structure thereof, and whereby the valve structure in engines operating by fuel injection may be directly mounted in the liner, and whereby other advantages are obtained, as will be made apparent below.

In the accompanying drawings illustrating the invention in two of its embodiments:

Figure 1 is a longitudinal section through one form of the cylinder;

Fig. 2 is a cross section through the exhaust and scavenging ports thereof;

Fig. 3 is a longitudinal section through the other form; and

Fig. 4 is a top or end plan of the liner element of that form.

The jacket I) and the head a may be a single casting, and the latter is formed with water chambers and a central opening. The liner a, with which the piston b has contact. is inserted through the lower or crank-shaft end of the jacket and is provided with radial enlargements g and y fitting against the machined sides of the jacket and an end wall 4; abutting against the machined face of a seat-ring is projecting from the inside of the jacket head and surrounding the opening therein. The said end wall is also provided with a centralopening, designated 7, and formed in a neck m WhlCh 1s circular in cross-section and concentric to the axis of the liner body so that cally in the drawings, but are to be understood as representing suitable or usual inectlon valve structures, and it is'also to be understood that the liner is appropriately secured to the jacket cylinder by means not necessary to be shown.

The ports d'for scavenging air and ports e for the exhaust-extend through the enlargernents g and corresponding port open- 1 ngs in the outer cylinder. The wateracket space between the jacket and liner, which serves for the circulation of cooling water, 1s provided with an inlet at h, and communicates with the space 'w around the valve stud through openings u in the seat is. the water finding its outlet at the opening but the method of circulating the water may of course be varied according to the preference of the maker.

In the construction shown in Figs. 3 and 4:, wherein corresponding parts are designated by the same reference characters plus a prime mark, the central opening in the head structure 0' is larger than in the form first described, and the seat-ring 7c is formed as a rabbet in such structure, which receives and makes a joint with the end of a circular flange p projecting from the end wall 1; of the liner, near its outer margin. This flange is screwed to its seat by the bolts 8 and the clamp rings 9 and 1, which may be either formed as parts of the jacket and liner. or as separate sectional rings in shouldere'd engagement therewith as indicated in the drawings. The openings u connecting the space w around the neck with the main water jacket space, between liner and jacket, are formed through the base of the flange p, in this case the top of the space w, being closed by a ring if or by any other suitable means.

In both forms, above described. it will be sertible from the crank-shaft end of the jacket and havin abutment against the head end thereo the said liner being formed with asingle concentric neck containing air starting and fuel injection valves.

2. A cylinder for internal combustion engines comprising a jacket casting having an integral or permanent hollow water-cooled head structure provided with an opening therethrough, a liner fitted to the interior of said casting and provided with a single central tubular neck extendin to the exterior of the jacket through the sald opening therein, and a plurality of injection valves mounted in said neck.

3. An internal combustion engine cylinder, comprising a jacket and a liner insertible from the crank-shaft end of the jacket and having abutment against the head end' thereof, in combination with a tubular neck formed concentrically with the liner, a housing inserted in said neck and containing a plurality of valve chambers, and starting and fuel valve members in said chambers.

4. In an internal combustion engine, the combination of a jacket having a head pro vided with a concentric opening, a liner having lateral contact with the jacket and abutting against the head thereof to form an intervening water space with said jacket, a tubular neck formed concentrically with the end of the liner and disposed in the opening of the head, the said opening affording a water-jacket space encircling the neck, and having means of commumcation between said space and the main water-jacket space,

crank-shaft end of the jacket and having an end wall provided with a concentric valve-receiving neck and an encircling flange, said flange and neck being separated by a water space, and means for drawing the flange to an abutment against the head.

7. In a cylinder for internal combustion engines, the combination of a acket having a centrally open head, a liner insertible from the crank-shaft end of the jacket and having-an end wall formed with a concentric neck and an encircling flange having abutment against the head, the flange and neck being separated by a water space, and openings through said flange placing the water space around the neck in communication with the main water spacebetween the jacket and liner. 7

In testimony whereof, I have signed this specification.

ALBERT BIE."

' Witnesses:

CARL GUBLER, BERTHA C. GRoB. 

